Pump health monitoring
First Claim
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1. A method of monitoring the health of a positive displacement hydraulic pump comprising the steps of:
- establishing a flow path having a known flow number between a high pressure outlet line of the pump and a low pressure line of the system;
progressively changing the rotational speed of operation of the pump; and
,noting the speed of operation of the pump at which a parameter responsive to the output pressure of the pump changes in response to said change in rotational speed of the pump.
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Abstract
A method of monitoring the health of a positive displacement hydraulic pump comprising the steps of:
- establishing a flow path having a known flow number between a high pressure outlet line of the pump (and a low pressure line of the system;
- progressively changing the speed of operation of the pump; and,
- noting the speed of operation of the pump at a parameter responsive to the output pressure of the pump changes in response to said change in rotational speed of the pump.
20 Citations
10 Claims
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1. A method of monitoring the health of a positive displacement hydraulic pump comprising the steps of:
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establishing a flow path having a known flow number between a high pressure outlet line of the pump and a low pressure line of the system; progressively changing the rotational speed of operation of the pump; and
,noting the speed of operation of the pump at which a parameter responsive to the output pressure of the pump changes in response to said change in rotational speed of the pump. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification